Bad indentation with nested array syntax

No idea why the indentation is off by 1 at the end of this query

pg_format << EOF
select t1.a, 
       (array (select (b, array (select b from t2)) from t2)) from t1
EOF
SELECT
    t1.a,
    (ARRAY (
            SELECT
                (b,
                    ARRAY (
                        SELECT
                            b
                        FROM
                            t2))
                FROM
                    t2))
    FROM
        t1

Start by reproducing the nested-array example with the pg_format command shown in the issue and compare its output with the reported indentation. Trace the formatter entry point responsible for nested SELECT and ARRAY formatting, then add or update a regression case for this query. Done means the query's nested clauses are indented consistently without changing other formatting behavior.